package train48days;

import java.util.Scanner;

public class 快到碗里来 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()){
            Double a = sc.nextDouble();
            Double b = sc.nextDouble();
            if (a<2*3.14*b){
                System.out.println("Yes");
            }else {
                System.out.println("No");
            }
        }
    }
}
